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Donald K. Burleson

Oracle Tips  

Oracle MIG utility

11. Run the MIG utility on the Oracle7 database according to the directions for your system. This creates an Oracle data dictionary and a binary convert file. You will need 1.5 times the amount of space that your current dictionary occupies as free space in your SYSTEM tablespace area for the new dictionary. If you aren’t sure you have the space, run MIG in CHECK_ONLY mode first. You aren’t past the point of no return…yet. This step obliterates the Oracle7 catalog views, but you can recover them by doing the following if you need to abandon the migration at this point:

a. Start up the Oracle7 database in normal mode.
b. Drop the user “migrate.”
d. If using parallel server, rerun CATPARR.SQL.
e. If using Symmetric Replication, run CATREP.SQL.

This will be a 7.3.4 database if you abandon at this point.

12. Remove any obsolete initialization parameters from the databases init<SID>.ora file.

a. Set compatible to or not at all.
b. Change the locations specified by the control_files parameter to a new location.

This is an excerpt by Mike Ault’s book “Oracle Administration & Management”.  If you want more current Oracle tips by Mike Ault, check out his new book “Mike Ault’s Oracle Internals Monitoring & Tuning Scripts” or Ault’s Oracle Scripts Download.




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